Research Article
The Sensitivity of Attenuation Impact to Bedrock PGA Based on PSHA Analysis, Case Study: Yogyakarta Special Region, Indonesia
@INPROCEEDINGS{10.4108/eai.12-10-2019.2296278, author={A J Syahbana and K Sugianti and M Irsyam and Hendriyawan Hendriyawan and M Asrurifak}, title={The Sensitivity of Attenuation Impact to Bedrock PGA Based on PSHA Analysis, Case Study: Yogyakarta Special Region, Indonesia}, proceedings={Proceedings of the 7th Mathematics, Science, and Computer Science Education International Seminar, MSCEIS 2019, 12 October 2019, Bandung, West Java, Indonesia}, publisher={EAI}, proceedings_a={MSCEIS}, year={2020}, month={7}, keywords={earthquake hazard attenuation pga openquake}, doi={10.4108/eai.12-10-2019.2296278} }- A J Syahbana
K Sugianti
M Irsyam
Hendriyawan Hendriyawan
M Asrurifak
Year: 2020
The Sensitivity of Attenuation Impact to Bedrock PGA Based on PSHA Analysis, Case Study: Yogyakarta Special Region, Indonesia
MSCEIS
EAI
DOI: 10.4108/eai.12-10-2019.2296278
Abstract
Special Region of Yogyakarta is one of the big cities in Indonesia which has important meaning from the political, social, economic and cultural aspect. This area is located in a high earthquake hazard zone based on the 2017 Earthquake Hazard Map. This location also mentioned has accelerated bedrock acceleration up to 0.6g. In this study, a re-analysis of PSHA will be carried out using the OpenQuake software with the GEM database and the latest attenuation to see the number of acceleration differences generated in the bedrock. Simulation is done by making two logic tree attenuation scenarios, later called the Pusgen scenario (1) and the Cummin's scenario (2). The result of this study is the first scenario will result in an acceleration greater than the second scenario. Bedrock PGA based on the Pusgen scenario range from 0.431-0.720g on another hand Cummin's scenarios range from 0.405 to 0.709g.
